[課業] 102高考 機械 私人答案
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邊際用此選項發文。
剛好有抄計算題的答案回來, 跟大家對一下吧~
一、力學 :
Q2: 1) 摩擦力f在0~3.5s時, 與F對稱於時間軸, 3.5~4s(大小由300N垂直降到200N水平線)
2) 3.5~4s a=10(等速), 速度斜直線, 位移二次曲線 瘦到胖(V4=多少我忘了抄)
Q3: 功能原理 W12 = T12, 當位能最小時,動能最大, 即 V_max = 3.189 m/s
(奇怪,我也是寫在D的正上方時,會有最小位能,但是答案怎麼.)
Q4: d > 119.9 mm (d_AB = 115 ; d_BC = 96.97 ; d_饒角 = 119.9 mm)
= (剛剛從算的)
2
P * L
Q5: 1) sita = ------------
32 * E * I
3
5 * P * L
2) 位移 = ------------
576 * E * I
二、機設
Q1: 1) Ns = 2.23
2) Ns = 7.76
Q2: 3) d = 0.45 m
Q3: 1) w = 2.9 mm
2) h = 7.855 mm
I
Q4: 1) ( --- + 2rm ) x'' + kr*x = 2mgr
2r
2) wn = [(2kr^2) / (I + 4mr^2)]^0.5
三、熱力
Q1: 0.22175 (應該不對)
Q2: 1) 焓差值 = 1487.43 KJ
QH = 1062.45 KJ
o
2) 45.65 C
Q3: 1) w_out,s = 430.8 KJ/kg
w_out,a = 387.72
2) h_f@60kpa < h2,a < h_g@60kpa
==> 仍處於飽和狀態
Q4: 熱效率 = 60.37 %
剩下自控與流力我是真的沒把握了
如果答案有錯~ 懇請高手指正 感激!
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◆ From: 163.32.125.141
推
07/10 16:12, , 1F
07/10 16:12, 1F
推
07/10 19:13, , 2F
07/10 19:13, 2F
※ 編輯: ultrachin 來自: 163.32.125.141 (07/10 20:09)
→
07/10 21:33, , 3F
07/10 21:33, 3F
推
07/10 22:16, , 4F
07/10 22:16, 4F
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07/10 22:18, , 5F
07/10 22:18, 5F
3.18 (m/s) 無誤
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07/10 22:45, , 6F
07/10 22:45, 6F
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07/10 22:46, , 7F
07/10 22:46, 7F
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07/10 22:51, , 8F
07/10 22:51, 8F
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07/10 22:52, , 9F
07/10 22:52, 9F
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07/10 22:54, , 10F
07/10 22:54, 10F
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07/10 22:54, , 11F
07/10 22:54, 11F
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07/10 22:55, , 12F
07/10 22:55, 12F
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07/10 22:56, , 13F
07/10 22:56, 13F
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07/10 23:00, , 14F
07/10 23:00, 14F
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07/10 23:01, , 15F
07/10 23:01, 15F
→ kiaaa:第四題120mm
120 應該沒錯
07/10 23:02
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07/10 23:23, , 16F
07/10 23:23, 16F
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07/10 23:23, , 17F
07/10 23:23, 17F
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07/10 23:25, , 18F
07/10 23:25, 18F
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07/10 23:26, , 19F
07/10 23:26, 19F
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07/10 23:28, , 20F
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07/10 23:30, , 21F
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07/10 23:33, , 22F
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07/10 23:42, , 23F
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07/10 23:42, , 24F
07/10 23:42, 24F
機設的書很少談到飛輪, 也不常考
(可以上望找資料, 不用買書)
推
07/11 08:14, , 25F
07/11 08:14, 25F
→
07/11 08:14, , 26F
07/11 08:14, 26F
5/576 是對的
※ 編輯: ultrachin 來自: 163.32.125.141 (07/11 11:13)
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07/11 10:24, , 27F
07/11 10:24, 27F
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07/11 11:22, , 28F
07/11 11:22, 28F
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07/11 22:04, , 29F
07/11 22:04, 29F
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07/12 00:41, , 30F
07/12 00:41, 30F
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07/12 00:43, , 31F
07/12 00:43, 31F
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07/12 00:45, , 32F
07/12 00:45, 32F
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07/12 00:54, , 33F
07/12 00:54, 33F
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07/12 00:56, , 34F
07/12 00:56, 34F